True, I guess I do like that Encom 511 is only seen in the trailer. A little mysterious. I don't like it when everything is explained in video games and film; I like some mystery like this. I'd be honored if Lisberger answered my Encom 511 question though.

I just got this from the Disney auction site;
I wonder if the accompanying text is accurate. . .
Travel to the heart of the game grid with our ''Attack on the MCP'' TRON Giclée. Here two relentless digital warriors confront the corrupt Master Control Program in electrifying pre-production art from the forthcoming sequel, TRON Legacy. Here's the direct page link for the article for sale. . .
I think it must be wrong because this seems more like preproduction art for the original film, with YORI, MCP, and TRON. Also, the art style is very much in sync with some from The Art of TRON book.